SIG P226 .40 in quick access safe.
Or, if I'm feeling jiggy, a folding stock AK, cruiser ready.
My son sleeps with my wife and I (terrible habit to start, future dads...can't get him in his own room no matter what we try)... so if the S hits the F, I'm just letting 30 rounds of 7.62x39 zip through the walls of my walls at whatever just came in through the front door or window. Target identification is for the Crime scene guys!
I'm kidding about that last part, BTW.